Tin-cutting device



' E. SCHMITZ.

TIN CUTTING DEVICE.

APPLICATION FILED JULYH, 1919.

Patented Jan. 3, 1922.,

3 SHEETS-SHEET I.

E. SCHMITZ.

TIN CUTTING DEVICE.

APPLECATION FILED JULYI4. 1919.

1 ,402,01 9, Patented Jan. 3, 1922.

3 SHEETS-SHEET 2.

Ewan/$01 11%;? 7/27/1 22 2? r v Q I Jam-2223;

E. SCHMITZ.

TIN CUTTING DEVICE.

APPLICATION FILED JULY14, 19l9.

1 ,4()2,0 1 9, Patented Jan. 3, 1922,

3 SHEETS-SHEET 3.

r UNITED T TES rarest; :FFEQ-E...

1 sierr'smvriwa'or c'ii zfdifo, I IliNors.

T 0 all whom it may concern:

Be it-known'thatl, ERNST,1SOHMITZ, a citizen of the United States, and a resident of the city of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Tin-Cutting Devices, of'which the following is a speci- My invention relates tov new anduseful improvements. in a tin cutting device, and has for its object the provision of a tin cutting device which will be durable in structure and eflicient in use.: A further object is the provisibnof a tin cuttingdevice whereby apowerful leverage may be exerted upon the cutting elenients.

Other objectsjwill appear hereinafter. The invention consists inith'e combinations and arrangements ofparts hereinafter described and claimed. V 1 The inventionfwillbe best understood-by reference to the accompanying ,drawings forming a part of thi's' specifica'tionfand in which,

Fig. 1 isfa side el' vation'a l viewqof'my invention. 7

' Fig.2 is a rear elevational view of my in? 'vention, with attachmentapplie'd.

- -Fig. 3'is a top plan view of my invention with attachment-applied. 1 j

at is a rear elevational view of the device shown in Fig.3 with parts in section.

Fig. 5 is a side elevational View of m invention showing attachment -Ztpp116d'.-

Fig. 6 is vertical sectionalview taken on 'substantially'line 66of Fig. 5. s

Fig. 7 is a perspective view *of'o'neof the attachments 7 Fig. 8 is a perspectiveviewof one of the attachments.

The device is intended primarily to mounted upon a baselO, upwardly projecting from which isa suitablestud orpost 11; having adjacent the upper-surface of 'the member 10 a suitable rest embodiedv in the collar 12. .A- frame 13 is-provided which .has downwardly projecting from the under surface socket member 1 1, which is proreception of the cylindrical post 11. -When mount'ed in this manner, the. frame 13 is thereby rotatably mounted upon the shaft orpost 11. The member 13 consists of two stationary jaws. 16 and 17. These'members l6 and 17 he planes which are Parallel,

the material, resulting in advantages which TIN-curring iinvicn'. l

Specification of fatent. Jan. 3, 19 22. 7 Application filed July 14,

1919.. SerialIiTo. 310,616.

member 16 lies "in a plane which isspaced bu'tjsp'aced oapart. The .uper edge of the' apart-from the plane in which thelower edge of the member 16 lies. Securely fastenedftofthe member 16 by suitable fastening means 18 is a cutting element 19 having the upper edge thereof inclined upwardly toward a cooperating cuttingjelement 21 .Which is 'pivotally'; mounted upon the frame ,13'by means of asuitable bolt or rivet 20. The cutting edgeof the cutting element 21 is inclined; downwardly. toward the adjacent ,;c0o per,a-ting cutting elem'ent 19. vThe combined widthsof the cutting elements 19 and 21 are equal to the spacebetween the parallel 'planes in. which the, members 16 i and 117 by meansof a suitable bolt 22 adjacent the '-largedf;portion 2 3 by means "or a: suitable wardly from the unders'urface of the member 17 at'the rear-endthereof, isa suitable shoulderBO. Whenthe device is used for cutting tin, this shoulder 30, which is round- ;ed at; the' forward end thereof, isadapted to engage on itsupper surface the portion of the tin. beingcutpwhich extends on that 'lie,;sothat the cutting elements may overlap ,at theircooperating edges with a veryclose fit. Pivotal-ly mountedupon the member 17 pin or bolt 26, atfone end is ,a link 27 the ;opposite end 28 of which is pivotally mounted upon-fl-the cutting'element21 by means of I af'suitable pin joribolt 29." Projecting downside-of the device. The rest of the material being out which extends on.the opposite .Sideof the device is adapted'to slide over the upper edge of' the member 16. This consequentl-y results in a downward flexing of one portion of the material on one side of thedevice from the other portion ofthe' material on the opposite side of the device,

thereby completely and positively separating the cut po'rtion of-the material and vided .with a, suitable opening "15 fort-the retaining it separated from the rest of are. readily apparent to one. skilled in this art. Projecting into the socketmember' 14 is a suitable locking device, prefe ferably a set screw or thumb screw 31, f r t e purpose of locking the device "and satisfactory mannerthe wo ker the usual shear-Which is usediupon this kind being operated.- Projecting laterally from Cir that the rwiclth-of the piece may be constant throughout its length. I have provided the jaw 16 is a suitable bearing member- 32 having a circular opening fltherethrough'. Projecting into the interior of the member 32 isa thumb screw or other locking memher, for the purpose of locking the Ihe IIiher 34 which is inserted in the membrane against rotation therein. Projecting. from the opposite side of the device, laterally from the member 17, is a suitable bearing member 35fhavingan opening therein for the reception of a cylindrical member 37. Projecting into the opening in the member 35 f is a suitabledockingelement 86 for the purpose of lockingthe element 37 against rotation therein. This device is designed primarily forthe purpose of cutting tin and-sheet metal and is intended to perform a more efiic'ient or material, Itis sometimes desirable to have a suitable wgaugefor]*meausuring the Width of the material being cut inorder such a device which is adapted to seat upon the upturned endof the member 34:; This.

"member consists of an angle iron. portion a 38, projecting downwardly from which is a suitable socket memb er 39 adapted to seat upon the upturned end of the member" 34:.

HA suitable locking member fiO prevents the rotation of this member upon the -fupturned' end of themember eeyasshown ineFiguQ.

In the use of this gaugemember, the sheet metal 41 is adapted tolie against the up wardly ext ending portionfofthe angle iron member 38,;the opposite edge of "the metal 41 being flexed downwardly by thelshoulder it 30,- already described.

Another attachment which designed to be used with my invention, comprises -a meansof cutting a circle out of the material desired-to be used. A suitable drum meniface of "the member 42. It isapparent that her 42 having a socket therein is adapted I to seat upon the upturned portion fof the" y H *C'l'ttblllaSzIlBW and desmeto secure by Letters niemberSet. A tit 43 projects upwardly from the cent-ralportionof" the upper surthe'member 4-2 is rotatably mounted upon tllflliPWfii'dlY turned end of the member 34. An additional drum member 44 is provided which has a socket therein forthereception of the downwardly turned end of the'member 37, as shovvn in Fig. suitableiloclr- Zing element 45 secures the drum 44cv upon the downwardly turned end of the member 37'- in its adjusted positionl The lovver face of "the member 44 when in operative position,

is smooth. Intheiuse of theseettachments, thematerial outof WlllChtllB circle is to be cutyis positioned upon the member 42, the member' lii? being positioned atthe censolely. 1

.of the appended claims; L

member 44 is then mounted upon the downter of the desired th' be. out. The I Wardly turned end of the member 37', and

the loWer face therein is positioned adjacent theupper surface of'the material tobe out, and their'securelyolocked in position bythe locking element 45. The material can then be rotated about the point 43 as a center, the

circumference of thecircle being tangent 'to' the two cooperating surfaces of the cutting element's. a a

In theviusei of this device, a stationary .ystudor post 11 maybe-used, which is mountedupon the base-l0,nas already described. It may sometimes be neoessary, 'hovvever to use the device at-diiferentplaces andiin dif ferent: positions; and to provide "for-the.- use 'of this device at different places and indifferent positional have provided afbracket e6 1 which has upwardly extending therefrom bemounted at diiierent "placespf, I,

ishighly efiicient inasmuch? as the leverage fln'rmysinvention I have lprovidedizas al-J -ready+ showna-a meansv of'icutting tin, which enertedupon .the material 'being' cut, is't'ransw nitted by; nieansg' of i the lever 24 o and, the link ,22;i j thereby fincreasing"a the pressure p which may- 'be exerted, upon the member 21' (Went-hatE-vvhich might be; exerted wereahe lever 24: to While I Thavefillustratedand the preferred, form of construction for ;carrying my invention into efli'ect, ibis-is capable of variation and modifica'tion Without departing from the spirit of the invention; therefore, do not;wish tobe limited to the precise details of the construction set forth, lent -desire to avail myself of such variations and modlfications as come withinthe scope Having described my invention, What I Pa tent, is

ing-war pivotally mounted frame having a downwardly projecting socket" member a bore int-said "socket member a shaft engaging said'boreand supporting said frame;

ce-opera'ting cutting elements mounted on said frame; and lever pivotally mounted on said frame, the endof said lever, adja- 7 cent the pivot point, broadened out forming icam .shaped; edge, said" cam shaped edge adapted to engage the upper edge of one 9f thezsaid cutting elements "forcing the same 4 into cutting position byan upward movement of said lever; substantially as described, i .l-

160 operate uponthe member -21' 2, In combination with a cutting device having a pivotally mounted frame; co-opcrating cutting elements mounted on said frame; a lever for actuating said cutting elements; bearings mounted on said frame and projecting laterally therefrom; clamping members adjustably mounted on said bearings; and means mounted on one of said clamping members adapted to engage the surface of a strip of material positioned between said clamping members, substantially as described.

3. In combination with a cutting device having a pivotally mounted frame; cooperating cutting elements mounted on said frame; a lever for actuating said cutting elements; bearin s mounted on said frame and projecting aterally therefrom; supporting members adjustably mounted on said bearings; clamping members removably mounted on one end of each of the said supporting members; and a penetrating point mounted on one of said clamping members adapted to engage the surface of a strip of material positioned between said clamping members, substantially as described.

4:. In combination with a cutting device having a pivotally mounted frame; co-operating cutting elements mounted on said frame; a lever for actuating said cutting elements; bearings mounted on said frame and projecting laterally therefrom; an angular shaped supporting member adjustably mounted on each of said bearings; clamping members removably mounted on one end of each of said supporting members; and a penetrating point mounted on one of said clamping members adapted to engage the surface of a strip of material positioned between said clamping members, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

' ERNST SCHMITZ.

Witnesses: t

JOSHUA R. H. Porrs, JANET E. FARRELL. 

